Why is the objective of a telescope made of a lens of larger focal length?

The objective of a telescope have large focal length and large aperture because large focal length enhances the magnifying power of the telescope and large aperture help in collecting large amount of light coming from the object so that a bright image is obtained.

Read more

Thereof, why do scientists design telescopes so large?

Astronomers always need ever larger telescopes for a whole host of astronomical puzzles - whether to detect ever fainter, and more numerous objects and thus maybe observe the very first stars and galaxies; or to resolve fine details in a star-by-star dissection of external galaxies, or the properties of nearby Moreover, how have telescopes changed our understanding of space? Telescopes have opened our eyes to the universe. Early telescopes showed that Earth was not the center of the universe, as was previously believed. Later telescopes have revealed geography and weather on the planets in our solar system. Telescopes have also revealed new planets and asteroids.

In respect to this, why is it better to place telescopes on a satellite in space rather than placing them on the ground?

Space-based telescopes like Hubble get a much clearer view of the universe than most of their ground-based counterparts. They're also able to detect frequencies and wavelengths across the entire electromagnetic spectrum. Which of the following is the biggest disadvantage of putting a telescope in space? Which of the following is the biggest disadvantage of putting a telescope in space? Space telescopes are much more expensive than similar ground-based telescopes.

Thereof, why do astronomers want to build the european extremely large telescope e elt at this particular location in chile?

Why do astronomers want to build the European Extremely Large Telescope (E-ELT) at this particular location in Chile? This location is dry and cloudless almost all year. Place the following famous telescopes in ascending order of their light-gathering power. spin faster. Moreover, what is the most important function of an astronomical telescope? telescope, device used to form magnified images of distant objects. The telescope is undoubtedly the most important investigative tool in astronomy. It provides a means of collecting and analyzing radiation from celestial objects, even those in the far reaches of the universe.